Beyond Linux® From Scratch - Version 7.8

Chapter 9. General Libraries

libxml2-2.9.2

Introduction to libxml2

The libxml2 package contains libraries and utilities used for parsing XML files.

This package is known to build and work properly using an LFS-7.8 platform.

Package Information

Additional Downloads

libxml2 Dependencies

Recommended

Python-2.7.10 or Python-3.4.3 (to build and install a Python library module, additionally it is required to run the full suite of tests)

[Note]

Note

Some packages which utilize libxml2 (such as GNOME Doc Utils) need the Python module installed to function properly and some packages will not build properly if the Python module is not available.

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libxml2

Installation of libxml2

Apply three upstream fixes, which correct bugs in xmlcatalog, in the entity substitution mechanism, and in entity checking: 

sed -e /xmlInitializeCatalog/d \
    -e 's/((ent->checked =.*&&/(((ent->checked == 0) ||\
            ((ent->children == NULL) \&\& (ctxt->options \& XML_PARSE_NOENT))) \&\&/' \
    -i parser.c &&

sed -e  "/The id is/{N;
                     a if (ctxt != NULL)
                    }" \
    -i valid.c

Install libxml2 by running the following commands: 

./configure --prefix=/usr --disable-static --with-history &&
make

If you downloaded the testsuite, issue the following command: 

tar xf ../xmlts20130923.tar.gz

To test the results, issue: make check > ../check.log. A summary of the results can be obtained with grep -E '^Total|expected' ../check.log.

Now, as the root user: 

make install

Command Explanations

--disable-static: This switch prevents installation of static versions of the libraries.

--with-history: This switch enables Readline support when running xmlcatalog or xmllint in shell mode.

--with-python=/usr/bin/python3: Add this switch if you want libxml2 to use Python3 instead of Python2.

Contents

Installed Programs: xml2-config, xmlcatalog and xmllint
Installed Libraries: libxml2.so and optionally, the libxml2mod.so Python module
Installed Directories: /usr/include/libxml2, /usr/share/doc/libxml2-2.9.2, /usr/share/doc/libxml2-python-2.9.2 and /usr/share/gtk-doc/html/libxml2

Short Descriptions

xml2-config

determines the compile and linker flags that should be used to compile and link programs that use libxml2.

xmlcatalog

is used to monitor and manipulate XML and SGML catalogs.

xmllint

parses XML files and outputs reports (based upon options) to detect errors in XML coding.

libxml2.so

provides functions for programs to parse files that use the XML format.

Last updated on 2015-09-13 13:18:47 -0700